DE502007005555D1 - METHOD AND DEVICE FOR GRANULATING WEATHER-CONTAINING POLYMER MELTS - Google Patents

METHOD AND DEVICE FOR GRANULATING WEATHER-CONTAINING POLYMER MELTS

Info

Publication number
DE502007005555D1
DE502007005555D1 DE502007005555T DE502007005555T DE502007005555D1 DE 502007005555 D1 DE502007005555 D1 DE 502007005555D1 DE 502007005555 T DE502007005555 T DE 502007005555T DE 502007005555 T DE502007005555 T DE 502007005555T DE 502007005555 D1 DE502007005555 D1 DE 502007005555D1
Authority
DE
Germany
Prior art keywords
liquid
pellets
pelletizing
depressurization
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE502007005555T
Other languages
German (de)
Inventor
Paulus Schmaus
Michael Heeger
Joachim Ruch
Jan Holoch
Christian Rasch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BASF SE
Original Assignee
BASF SE
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=38198296&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE502007005555(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by BASF SE filed Critical BASF SE
Publication of DE502007005555D1 publication Critical patent/DE502007005555D1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/02—Making granules by dividing preformed material
    • B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • B29B9/065—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion under-water, e.g. underwater pelletizers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/12—Making granules characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00—Making granules
    • B29B9/16—Auxiliary treatment of granules
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3461—Making or treating expandable particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C2037/96—Filters

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Cyclones (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

The invention relates to a process and an apparatus for pelletizing polymer melts comprising blowing agent in a pelletizing chamber through which a liquid flows, its pressure being above the ambient pressure. In a first step, the polymer melt is injected into the pelletizing chamber, in a second step the polymer melt is cut via a cutting apparatus into individual pellets and, in a third step, the pellets produced in the pelletizing process are discharged with the liquid from the pelletizing chamber and are then isolated from the liquid. This process also comprises at least one of the following steps: (a) comminution of agglomerates or of pellets which exceed a prescribed maximum size, in a comminuting machine downstream of the pelletizing chamber or in a comminuting unit downstream of the cutting apparatus, (b) depressurization of the liquid in a depressurizing machine, (c) depressurization of the liquid in a throttle apparatus, where there is, upstream of the throttle apparatus, a pressure-equalizing container, (d) isolation of the pellets from the liquid, without any prior depressurization of the liquid with the pellets which it comprises.
DE502007005555T 2006-03-22 2007-03-15 METHOD AND DEVICE FOR GRANULATING WEATHER-CONTAINING POLYMER MELTS Active DE502007005555D1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP06111521 2006-03-22
PCT/EP2007/052441 WO2007107493A1 (en) 2006-03-22 2007-03-15 Method and device for granulating polymer melts containing blowing agent

Publications (1)

Publication Number Publication Date
DE502007005555D1 true DE502007005555D1 (en) 2010-12-16

Family

ID=38198296

Family Applications (1)

Application Number Title Priority Date Filing Date
DE502007005555T Active DE502007005555D1 (en) 2006-03-22 2007-03-15 METHOD AND DEVICE FOR GRANULATING WEATHER-CONTAINING POLYMER MELTS

Country Status (13)

Country Link
US (1) US8795562B2 (en)
EP (1) EP1998948B2 (en)
KR (1) KR101453105B1 (en)
CN (1) CN101405122B (en)
AT (1) ATE486705T1 (en)
BR (1) BRPI0709627A2 (en)
DE (1) DE502007005555D1 (en)
ES (1) ES2353991T3 (en)
MX (1) MX2008011806A (en)
MY (1) MY147779A (en)
PL (1) PL1998948T3 (en)
RU (1) RU2395391C2 (en)
WO (1) WO2007107493A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006022555B4 (en) * 2006-05-15 2010-12-16 Rieter Automatik Gmbh Device and method for producing a granulate from a plastic melt
US20100102467A1 (en) * 2008-10-28 2010-04-29 E. I. Du Pont De Nemours And Company Polymer underwater melt cutter and processes associated therewith
DE102008062480A1 (en) * 2008-12-16 2010-06-17 Automatik Plastics Machinery Gmbh Process for granulating plastic with high softening temperature
DE102009037439A1 (en) 2009-08-13 2011-02-17 Automatik Plastics Machinery Gmbh Device for depressurizing a fluid with granules contained therein
EP2353832A1 (en) 2010-01-28 2011-08-10 Total Petrochemicals Research Feluy Method to start-up a process to make expandable vinyl aromatic polymers
IT1404150B1 (en) 2010-12-28 2013-11-15 Polimeri Europa Spa PROCEDURE FOR DEPRESSURIZATION OF FLUIDS AND DEVICE FOR THE PURPOSE
DK2567799T3 (en) * 2011-09-07 2014-03-31 Armacell Entpr Gmbh & Co Kg Extrusion expansion of low molecular weight polyalkylene terephthalate to make expanded beads
DE102011119076B4 (en) 2011-11-21 2014-06-26 Automatik Plastics Machinery Gmbh Apparatus and method for depressurizing a fluid containing granules therein
DE102012011894A1 (en) * 2012-06-15 2014-01-02 Automatik Plastics Machinery Gmbh Method and device for granulating melt material
ES2646539T3 (en) 2013-06-13 2017-12-14 Basf Se Procedure for the manufacture of expanded granulate
DE102014216992A1 (en) * 2014-08-26 2016-03-03 Adidas Ag Expanded polymer pellets
EP3662002B1 (en) * 2017-08-04 2021-10-27 Basf Se Expandable granulates containing propellant on the basis of high-temperature thermoplastic
KR102647116B1 (en) * 2017-12-27 2024-03-13 베르살리스 에스.피.에이. Circuit and method for managing transients in a plant for continuous mass production of granular expandable polymers
CN111660482B (en) * 2020-06-15 2022-09-06 镇江市常松建材有限公司 Polystyrene insulation board and preparation method thereof
AT526070B1 (en) * 2022-10-19 2023-11-15 Econ Gmbh Device for pressurized underwater granulation of plastics at a process water temperature of over 100 °C

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US3092489A (en) 1960-02-23 1963-06-04 Chemical & Ind Corp Process for production of fertilizer pellets and the like
US3564650A (en) * 1967-12-06 1971-02-23 Baker Perkins Inc Apparatus for extruding plastic strands and cutting them up into pellets
DE1915950A1 (en) 1968-05-27 1969-12-04 Basf Ag Process for granulating thermoplastics containing blowing agents
US3555144A (en) * 1969-05-29 1971-01-12 American Cyanamid Co Color-coded jigsaw design tablet compressed from therapeutic extruded cylindrical granules of visibly different colors
JPS492183B1 (en) * 1970-11-13 1974-01-18
US4123606A (en) * 1977-09-21 1978-10-31 E. I. Du Pont De Nemours And Company Deagglomeration process
IT1163386B (en) * 1983-05-19 1987-04-08 Montedison Spa PROCEDURE FOR THE PRODUCTION OF EXPANDABLE GRANULES OF THERMOPLASTIC POLYMERS AND RELATED EQUIPMENT
DE3321579A1 (en) 1983-06-15 1984-12-20 Basf Ag, 6700 Ludwigshafen METHOD FOR THE CONTINUOUS PRODUCTION OF POLYAMIDES
DE3321581A1 (en) 1983-06-15 1984-12-20 Basf Ag, 6700 Ludwigshafen METHOD FOR THE CONTINUOUS PRODUCTION OF POLYAMIDES
JPS6136176A (en) 1984-07-26 1986-02-20 三菱マテリアル株式会社 Sic-si3n4-si sintered body and manufacture
DE3631376C1 (en) * 1986-09-15 1988-05-11 Werner & Pfleiderer Cooling device for plastic granulate
EP0305862A1 (en) † 1987-09-04 1989-03-08 General Electric Company One-step process for the production of expandable foam beads
JPH01168404A (en) 1987-12-24 1989-07-03 Kobe Steel Ltd Water cooled aerial hot cut pelletizer
US5052426A (en) † 1991-01-16 1991-10-01 The United States Of America As Represented By The United States Department Of Energy System for pressure letdown of abrasive slurries
US5234963A (en) * 1992-05-13 1993-08-10 Gaia Research Production of encapsulated chemical foaming concentrates
JPH06136176A (en) † 1992-10-29 1994-05-17 Dainippon Ink & Chem Inc Production of foamable thermoplastic resin particle
DE4321683A1 (en) 1993-06-30 1995-01-12 Basf Ag Process for the continuous production of low molecular weight polyamides
JPH07314438A (en) 1994-05-30 1995-12-05 Dainippon Ink & Chem Inc Production of foamable thermoplastic resin granule
US5605937A (en) † 1994-09-30 1997-02-25 Knaus; Dennis A. Moldable thermoplastic polymer foam beads
JPH09221562A (en) 1996-02-16 1997-08-26 Dainippon Ink & Chem Inc Production of expandable thermoplastic resin particle
JP3742482B2 (en) 1996-07-31 2006-02-01 株式会社日本製鋼所 Underwater cut pellet conveying method and apparatus
US5895617A (en) 1996-07-31 1999-04-20 The Japan Steel Works, Ltd. Method and apparatus for transporting underwater cut pellets
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US7033152B2 (en) * 2002-05-09 2006-04-25 Gala Industries, Inc Underwater pelletizer with positively controlled cutter HUB
DE10226749B4 (en) 2002-06-14 2014-09-04 Basf Se Process for producing expandable polystyrene
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DE102004034516A1 (en) 2004-07-15 2006-02-16 Basf Ag Process for the preparation of flame-retardant, expandable polystyrene

Also Published As

Publication number Publication date
MY147779A (en) 2013-01-31
CN101405122B (en) 2012-08-15
EP1998948B1 (en) 2010-11-03
EP1998948B2 (en) 2017-06-07
RU2008141449A (en) 2010-04-27
ATE486705T1 (en) 2010-11-15
KR101453105B1 (en) 2014-10-27
RU2395391C2 (en) 2010-07-27
ES2353991T3 (en) 2011-03-09
WO2007107493A1 (en) 2007-09-27
PL1998948T3 (en) 2011-04-29
BRPI0709627A2 (en) 2011-07-26
MX2008011806A (en) 2008-09-29
US8795562B2 (en) 2014-08-05
US20090108480A1 (en) 2009-04-30
KR20080102217A (en) 2008-11-24
EP1998948A1 (en) 2008-12-10
CN101405122A (en) 2009-04-08

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